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Development of organic fiber electrodes for improving brain functions

Research Project

Project/Area Number 15K01275
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionNational Center of Neurology and Psychiatry (2016-2017)
The University of Tokyo (2015)

Principal Investigator

Watanabe Satoshi  国立研究開発法人国立精神・神経医療研究センター, 神経研究所 微細構造研究部, 流動研究員 (80302610)

Co-Investigator(Renkei-kenkyūsha) TORIMITSU Keiichi  東北大学, 大学院工学研究科, 教授 (00393728)
KAWAHARA Shigenori  富山大学, 大学院理工学研究部(工学), 教授 (10204752)
HIRONO Moritoshi  同志社大学, 研究開発推進機構, 准教授 (30318836)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords導電性高分子 / 電気生理学 / シナプス伝達 / 脳波 / 瞬目反射 / 小脳 / 条件付け / シナプス可塑性 / 神経修飾物質 / シナプス電位
Outline of Final Research Achievements

Long-term recording of brain activity and stimulation are required for diagnosis of diseases and restoration of body functions through brain-machine interface. Poly(3,4-ethylenedioxythiphene) (PEDOT) based organic electrodes have high biocompatibility, but their electrical characteristics have been mostly insufficient for application to the brain. We fabricated an improved fiber electrode using PEDOT doped with p-toluene sulfonate (PEDOT-pTS). Using this electrode, we succeeded in recording neural activity or locally stimulating neurons to induce synaptic transmission.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (13 results)

All 2017 2016 2015

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (10 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Novel method of extracting motion from natural movies2017

    • Author(s)
      Suzuki Wataru、Ichinohe Noritaka、Tani Toshiki、Hayami Taku、Miyakawa Naohisa、Watanabe Satoshi、Takeichi Hiroshige
    • Journal Title

      Journal of Neuroscience Methods

      Volume: 291 Pages: 51-60

    • DOI

      10.1016/j.jneumeth.2017.08.006

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electroconductive polymer-coated silk fiber electrodes for neural recording and stimulation in vivo2017

    • Author(s)
      Watababe, S., Takahashi, H., Torimitsu, K.
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56 Issue: 3 Pages: 037001-037001

    • DOI

      10.7567/jjap.56.037001

    • NAID

      210000147490

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Phase-dependent modulation of oscillatory phase and synchrony by long-lasting depolarizing inputs in central neurons2016

    • Author(s)
      Watanabe, S., Hirono, M.
    • Journal Title

      eNeuro

      Volume: 3 Issue: 5 Pages: 1-15

    • DOI

      10.1523/eneuro.0066-16.2016

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Perineuronal nets in the deep cerebellar nuclei regulate GABAergic synaptic transmission and delay eyeblink conditioning2017

    • Author(s)
      Hirono, M., Watanabe, S., Kawahara, S., Nagao, S., Yanagawa, Y., Misonou, H.
    • Organizer
      第94回日本生理学会大会
    • Place of Presentation
      アクトシティ浜松(静岡県浜松市)
    • Year and Date
      2017-03-28
    • Related Report
      2016 Research-status Report
  • [Presentation] 小脳核ニューロンのペリニューロナルネットによるGABAシナプス伝達修飾と瞬目反射条件づけ制御2017

    • Author(s)
      廣野 守俊、渡辺 恵、川原 茂敬、永雄 総一、柳川 右千夫、御園生 裕明
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Phase-dependent modulation of neural oscillations by synaptic inputs2016

    • Author(s)
      Watanabe, S., Hirono, M.
    • Organizer
      日本生物物理学会第54回年会
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2016-11-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Conductive silk electrode for intra/extra bioelectrical measurement2016

    • Author(s)
      Torimitsu, K, Takizawa, Y., Takahashi, H., Watanabe, S., Sonobe, T.
    • Organizer
      38th Annual International Conference of the IEEE Engineering in Medicine and Biology
    • Place of Presentation
      Contemporary Resort, Orlando, FL, USA
    • Year and Date
      2016-08-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Phase-dependent effects of synaptic inputs on neural oscillations2016

    • Author(s)
      Watanabe, S., Hirono, M.
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-07-20
    • Related Report
      2016 Research-status Report
  • [Presentation] 振動活動に対するシナプス入力の位相依存性効果2016

    • Author(s)
      渡邉 惠,廣野 守俊
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-07-20
    • Related Report
      2015 Research-status Report
  • [Presentation] 神経細胞周囲網による小脳核抑制性GABA シナプス伝達の制御2016

    • Author(s)
      廣野 守俊,渡邉 惠,川原 茂敬,永雄 総一,柳川 右千夫,御園生 裕明
    • Organizer
      第93回日本生理学会大会
    • Place of Presentation
      札幌コンベンションセンター(北海道札幌市)
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] 柔らかい有機電極を用いる脳活動の同時多点測定2015

    • Author(s)
      渡邉 惠,高橋 秀幸,鳥光 慶一
    • Organizer
      日本生物物理学会第53回年会
    • Place of Presentation
      金沢大学(石川県金沢市)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Research-status Report
  • [Presentation] 生体活動電位モニタリング用シルク電極の開発2015

    • Author(s)
      瀧澤 勇介,園部 達真,高橋 秀幸,渡邉 惠,西澤 松彦,鳥光 慶一
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      神戸国際会議場(兵庫県神戸市)
    • Year and Date
      2015-07-28
    • Related Report
      2015 Research-status Report
  • [Presentation] Developmental chick neuronal activity measurement using silk flexible electrode2015

    • Author(s)
      Torimitsu, K., Sonobe, T., Takizawa, Y., Takahashi, H., Watanabe, S.
    • Organizer
      1st Congress of the European Academy of Neurology
    • Place of Presentation
      ベルリン(ドイツ)
    • Year and Date
      2015-06-20
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2019-03-29  

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